Arkansas Mannagrass thrives in consistently moist to wet conditions. Water regularly to keep the soil saturated, especially during warmer months.

Avoid allowing the soil to dry out completely, as this can stress the plant. In its natural wetland habitat, it is often submerged or waterlogged.

Pruning is primarily for aesthetic purposes or to manage spread. Remove dead or yellowing foliage as needed to maintain a tidy appearance.

If the grass becomes too dense or begins to overcrowd its space, select older culms to remove at the base. Minimal intervention is usually best.

Propagation is easily achieved through division of established clumps. In spring, carefully dig up the plant and separate the rhizomatous root system into smaller sections, each with viable shoots and roots.

Replant divisions immediately into moist soil.

Repotting is typically only necessary if Glyceria arkansana is grown in a container and has outgrown its pot or the soil has become depleted. This is best done in spring.

Ensure the new pot is adequately sized and provides good drainage, while maintaining moist soil conditions.